Home / 39,599.87-54,647.51-21,450.20

Finding the Fourth Proportional to 39,599.87, 54,647.51 and 21,450.20

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Solution

The fourth proportional to 39,599.87, 54,647.51 and 21,450.20 is: 29,601.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,599.87 : 54,647.51 = 21,450.20 : x
  2. Step 2: Convert to fraction form
    39,599.87/54,647.51 = 21,450.20/x
  3. Step 3: Cross multiply
    39,599.87x = 54,647.51 × 21,450.20
  4. Step 4: Simplify right side
    39,599.87x = 1,172,200,066.56
  5. Step 5: Solve for x
    x = 1,172,200,066.56/39,599.87
  6. Step 6: Final answer
    x = 29,601.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.